Substrate structure for an image sensor package and method for manufacturing the same

ABSTRACT

A substrate structure for an image sensor package, the substrate structure includes a bottom base and a frame layer. The bottom base has an upper surface formed with a plurality of first electrodes, and a lower surface formed with a plurality of second electrodes, an insulation layer is coated between each of the first electrode, so as to the upper surface of the bottom base is smooth. A frame layer is arranged on the upper surface of the bottom base to form a cavity together with the bottom base.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a substrate structure for an image sensor package and method for manufacturing the same, and particular to a substrate structure for forming a frame layer on the substrate of the image sensor, the reliability of the image sensor may be promoted.

2. Description of the Related Art

Referring to FIG. 1, it is an image sensor structure includes a substrate 10, a frame layer 18, a photosensitive chip 26, a plurality of wires 28, and a transparent layer 34.

The substrate 10 has a first surface 12 on which plurality of first electrodes 15 are formed, and a second surface 14 on which plurality of second electrodes 6 are formed. The first electrodes 15 are corresponding to electrically connect to the second electrodes 16 by the conductive wires 17, which are located at the side of the substrate. The frame layer 18 has an upper surface 20 and a lower surface 22 adhered to the first surface 12 of the substrate 10 to form a cavity 24 together with the substrate 10. The photosensitive chip 26 is arranged within the chamber 24, and is mounted to the first surface 12 of the substrate 10. Each wire 28 has a first terminal 30 and a second terminal 32. The first terminals 30 are electrically connected to the photosensitive chip 26, and the second terminals 32 are electrically connected to the first electrodes 15 of the substrate 10. The transparent layer 34 is adhered to the upper surface 20 of the frame layer 18.

Therefore, in the process of manufacturing the substrate 10 and frame layer 18, particles and wet air from atmosphere will enter the internal of the product through between the each of first electrode, so that the reliability of the product may be reduced.

SUMMARY OF THE INVENTION

An objective of the invention is to provide a substrate structure for manufacturing an image sensor package and method for manufacturing the same capable of increasing the reliability of the image sensor package.

To achieve the above-mentioned object, the invention provides includes a bottom base and a frame layer. The bottom base has an upper surface formed with a plurality of first electrodes, and a lower surface formed with a plurality of second electrodes, an insulation layer is coated between each of the first electrode, so as to the upper surface of the bottom base is smooth. A frame layer is arranged on the upper surface of the bottom base to form a cavity together with the bottom base, so that the reliable of the image sensor may be promoted.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic illustration showing an image sensor structure.

FIG. 2 is a top-view illustration showing a bottom base of a substrate for an image sensor package.

FIG. 3 is a cross-sectional view illustration showing a substrate for an image sensor package.

FIG. 4 is a first schematic illustration showing a method for manufacturing a substrate structure.

FIG. 5 is a second schematic illustration showing a method for manufacturing a substrate structure.

DETAILED DESCRIPTION OF THE INVENTION

Please refer to FIG. 2 and FIG. 3, a substrate structure for manufacturing an image sensor package of the present invention includes a bottom base 40 and frame layer 42.

The bottom base 40 has an upper surface 44 formed with a plurality of first electrodes 48, and a lower surface 46 formed with a plurality of second electrodes 50. Each of the first electrodes 48 is corresponding to electrically connect to the second electrode 50. An insulation layer 52 is coated between each of the first electrode 48, so as to the upper surface 44 of the bottom base 40 is smooth. In the embodiment, the insulation layer 52 is green paint coated between each of first electrode 48.

The frame layer 42 is arranged on the upper surface 44 of the bottom base 40 to form a cavity 54 together with the bottom base 40.

Please refer to FIG. 2 and FIGS. 3 and 4. A method for manufacturing a substrate of an image sensor package, the method includes the steps of;

Providing a bottom base 40 having an upper surface 44 formed with a plurality of first electrodes 48. Each of the first electrodes 48 is corresponding to electrically connect to the second electrode 50. An insulation layer 52 is coated between each of the first electrode 48, so as to the upper surface 44 of the bottom base 40 is smooth. In the embodiment, the insulation layer 52 is green paint coated between each of first electrode 48.

Providing a plurality of frame layer 42 arranged on the upper surface 44 of the bottom base 40 to form a plurality of cavity 54 together with the bottom base 40.

Providing a glue film 56 located on the lower surface 46 of the bottom base 40 to fix the bottom base 40.

Cutting the each of the frame layer 42 to form a single substrate.

While the invention has been described by the way of an example and in terms of a preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications. 

1. A substrate structure for an image sensor package, the substrate structure comprising a bottom base having an upper surface formed with a plurality of first electrodes, and a lower surface formed with a plurality of second electrodes, an insulation layer is coated between each of the first electrode, so as to the upper surface of the bottom base is smooth a frame layer arranged on the upper surface of the bottom base to form a cavity together with the bottom base.
 2. The substrate structure for an image sensor package according to claim 1, wherein the each of first electrode is corresponding to electrically connect to the second electrode.
 3. The substrate structure for an image sensor package according to claim 1, wherein the insulation layer is green paint.
 4. A method for manufacturing a substrate of an image sensor package, the method comprising Providing a bottom base having an upper surface formed with a plurality of first electrodes, an insulation layer is coated between each of the first electrode, so as to the upper surface of the bottom base is smooth; Providing a plurality of frame layer arranged o the upper surface of the bottom base to form a plurality of cavity together with the bottom base Providing a glue film located on the lower surface of the bottom base to fix the bottom base; and Cutting the each of the frame layer to form a single substrate.
 5. The method for manufacturing a substrate of an image sensor package according to claim 4, wherein the each of first electrode is corresponding to electrically connect to the second electrodes.
 6. The method for manufacturing a substrate of an image sensor package according to claim 4, wherein the insulation layer is green paint. 